1 files changed, 52 insertions, 43 deletions

diff --git a/indra/llcommon/llsys.cpp b/indra/llcommon/llsys.cpp
index 79625ad9f8..4e85618b2d 100644
--- a/indra/llcommon/llsys.cpp
+++ b/indra/llcommon/llsys.cpp
@@ -83,8 +83,13 @@ using namespace llsd;
 #   include <sys/sysinfo.h>
 #   include <stdexcept>
 const char MEMINFO_FILE[] = "/proc/meminfo";
+#ifdef __GNU__
 #   include <gnu/libc-version.h>
 #endif
+#elif __FreeBSD__
+#	include <sys/sysctl.h>
+#	include <sys/utsname.h>
+#endif
 
 LLCPUInfo gSysCPU;
 LLMemoryInfo gSysMemory;
@@ -340,6 +345,8 @@ LLOSInfo::LLOSInfo() :
         mOSString = mOSStringSimple;
     }
 
+#ifdef __GNU__
+
     const char OS_VERSION_MATCH_EXPRESSION[] = "([0-9]+)\\.([0-9]+)(\\.([0-9]+))?";
     boost::regex os_version_parse(OS_VERSION_MATCH_EXPRESSION);
     boost::smatch matched;
@@ -403,6 +410,8 @@ LLOSInfo::LLOSInfo() :
         LL_WARNS("AppInit") << "glibc version '" << glibc_version << "' cannot be parsed to three numbers; using all zeros" << LL_ENDL;
     }
 
+#endif // __GNU__
+
 #else
 
     struct utsname un;
@@ -429,6 +438,13 @@ LLOSInfo::LLOSInfo() :
             if (simple.length() > 0)
                 mOSStringSimple = simple;
         }
+        else if (ostype == "FreeBSD")
+        {
+            // Only care about major and minor FreeBSD versions, truncate at first '-'
+            std::string simple = mOSStringSimple.substr(0, mOSStringSimple.find_first_of("-", 0));
+            if (simple.length() > 0)
+                mOSStringSimple = simple;
+        }
     }
     else
     {
@@ -504,57 +520,46 @@ const S32 LLOSInfo::getOSBitness() const
     return mOSBitness;
 }
 
-//static
-U32 LLOSInfo::getProcessVirtualSizeKB()
-{
-    U32 virtual_size = 0;
-#if LL_LINUX
-#   define STATUS_SIZE 2048
-    LLFILE* status_filep = LLFile::fopen("/proc/self/status", "rb");
-    if (status_filep)
-    {
-        S32 numRead = 0;
-        char buff[STATUS_SIZE];     /* Flawfinder: ignore */
+namespace {
 
-        size_t nbytes = fread(buff, 1, STATUS_SIZE-1, status_filep);
-        buff[nbytes] = '\0';
+    U32 readFromProcStat( std::string entryName )
+    {
+        U32 val{};
+#if LL_LINUX
+        constexpr U32 STATUS_SIZE  = 2048;
 
-        // All these guys return numbers in KB
-        char *memp = strstr(buff, "VmSize:");
-        if (memp)
+        LLFILE* status_filep = LLFile::fopen("/proc/self/status", "rb");
+        if (status_filep)
         {
-            numRead += sscanf(memp, "%*s %u", &virtual_size);
+            char buff[STATUS_SIZE];     /* Flawfinder: ignore */
+
+            size_t nbytes = fread(buff, 1, STATUS_SIZE-1, status_filep);
+            buff[nbytes] = '\0';
+
+            // All these guys return numbers in KB
+            char *memp = strstr(buff, entryName.c_str());
+            if (memp)
+            {
+                (void) sscanf(memp, "%*s %u", &val);
+            }
+            fclose(status_filep);
         }
-        fclose(status_filep);
-    }
 #endif
-    return virtual_size;
+        return val;
+    }
+
 }
 
 //static
-U32 LLOSInfo::getProcessResidentSizeKB()
+U32 LLOSInfo::getProcessVirtualSizeKB()
 {
-    U32 resident_size = 0;
-#if LL_LINUX
-    LLFILE* status_filep = LLFile::fopen("/proc/self/status", "rb");
-    if (status_filep != NULL)
-    {
-        S32 numRead = 0;
-        char buff[STATUS_SIZE];     /* Flawfinder: ignore */
-
-        size_t nbytes = fread(buff, 1, STATUS_SIZE-1, status_filep);
-        buff[nbytes] = '\0';
+    return readFromProcStat( "VmSize:" );
+}
 
-        // All these guys return numbers in KB
-        char *memp = strstr(buff, "VmRSS:");
-        if (memp)
-        {
-            numRead += sscanf(memp, "%*s %u", &resident_size);
-        }
-        fclose(status_filep);
-    }
-#endif
-    return resident_size;
+//static
+U32 LLOSInfo::getProcessResidentSizeKB()
+{
+    return readFromProcStat( "VmRSS:" );
 }
 
 //static
@@ -765,13 +770,17 @@ static U32Kilobytes LLMemoryAdjustKBResult(U32Kilobytes inKB)
 }
 #endif
 
-#if LL_DARWIN
+#if LL_DARWIN || __FreeBSD__
 // static
 U32Kilobytes LLMemoryInfo::getHardwareMemSize()
 {
     // This might work on Linux as well.  Someone check...
     uint64_t phys = 0;
+#if LL_DARWIN
     int mib[2] = { CTL_HW, HW_MEMSIZE };
+#else
+    int mib[2] = { CTL_HW, HW_PHYSMEM };
+#endif
 
     size_t len = sizeof(phys);
     sysctl(mib, 2, &phys, &len, NULL, 0);
@@ -785,7 +794,7 @@ U32Kilobytes LLMemoryInfo::getPhysicalMemoryKB() const
 #if LL_WINDOWS
     return LLMemoryAdjustKBResult(U32Kilobytes(mStatsMap["Total Physical KB"].asInteger()));
 
-#elif LL_DARWIN
+#elif LL_DARWIN || __FreeBSD__
     return getHardwareMemSize();
 
 #elif LL_LINUX